The 'Erlenmeter': a low-cost, open-source turbidimeter for no-sampling phenotyping of microorganism growth.

ABSTRACT: This work presents a low-cost, open-source turbidimeter, the 'Erlenmeter', designed to monitor the growth of microorganisms in batch cultures. It is easy to build, based exclusively on inexpensive off-the-shelf electronic components and 3D-printed parts. The Erlenmeter allows measuring the optical density of cultures on standard Erlenmeyer flasks without the need to open the flasks to collect aliquots, ensuring speed, minimal use of consumables, and elimination of the risk of contamination. These features make it particularly well-suited not just for routine research assays but also for experimental teaching. Here we illustrate the use of the Erlenmeter turbidimeter to record the growth of the microalga Phaeodactylum tricornutum, of the bacterium Escherichia coli, and of the

SUBMITTER: Serodio J 

PROVIDER: S-EPMC11243968 | biostudies-literature | 2024

REPOSITORIES: biostudies-literature